Technical Specifications 4-20mA analog input signal, pneumatic output pressure, HART communication protocol, single acting / double acting actuator compatible, IP66 housing protection.
Functional Features Automatic valve calibration, position closed-loop control, valve performance diagnostics, HART digital communication, low air consumption design.
Application Scenarios Chemical process control, oil and gas production, power plant valve regulation, refining and petrochemical control valves.
Performance Parameters High positioning accuracy, fast step response, stable control under vibration, wide operating temperature range.
Material Composition Aluminum die-cast housing, piezoelectric pneumatic actuator, position feedback sensor, electronic circuit board with conformal coating.
Structural Characteristics Field mount compact housing, local adjustment buttons, air supply ports, electrical signal terminal compartment.
Working Principle Compares the 4-20mA input setpoint with the actual valve position feedback signal, adjusts output air pressure to the pneumatic actuator to move the valve plug to the target position.
Installation Requirements Mount on pneumatic valve actuator, connect clean dry instrument air supply, wire 4-20mA control signal, perform auto calibration after installation.
Usage Notes Supply instrument air meeting quality standards. Check air line for leakage regularly. Perform valve position calibration after maintenance.
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